﻿// This software is part of the Autofac IoC container Copyright © 2015 Autofac Contributors http://autofac.org
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
// associated documentation files (the "Software"), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge, publish, distribute,
// sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
// NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
// OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

using System.Diagnostics.CodeAnalysis;
using Microsoft.Extensions.DependencyInjection;

namespace Autofac.Extensions.DependencyInjection
{
  /// <summary>Autofac implementation of the ASP.NET Core <see cref="IServiceScopeFactory"/>.</summary>
  /// <seealso cref="Microsoft.Extensions.DependencyInjection.IServiceScopeFactory"/>
  [SuppressMessage("Microsoft.ApiDesignGuidelines", "CA2213", Justification = "The creator of the root service lifetime scope is responsible for disposal.")]
  internal class AutofacServiceScopeFactory : IServiceScopeFactory
  {
    private readonly ILifetimeScope _lifetimeScope;

    /// <summary>Initializes a new instance of the <see cref="AutofacServiceScopeFactory"/> class.</summary>
    /// <param name="lifetimeScope">The lifetime scope.</param>
    public AutofacServiceScopeFactory(ILifetimeScope lifetimeScope) => _lifetimeScope = lifetimeScope;

    /// <summary>Creates an <see cref="IServiceScope"/> which contains an <see
    /// cref="System.IServiceProvider"/> used to resolve dependencies within the scope.</summary>
    /// <returns>An <see cref="IServiceScope"/> controlling the lifetime of the scope. 
    /// Once this is disposed, any scoped services that have been resolved from the 
    /// <see cref="IServiceScope.ServiceProvider"/> will also be disposed.</returns>
    public IServiceScope CreateScope() => new AutofacServiceScope(_lifetimeScope.BeginLifetimeScope());
  }
}